FM
Fred Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Le-Sueur-County, Minnesota
Our Model Tree links this Fred Martin across the 1920, 1930 and 1940 US Censuses in Le-Sueur-County, Minnesota (XGBoost, ~Confirmed), with identified parents Anna & William — first a son (b.~1920), then head of a 6-person household.
Age 20
b. ~1920
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Le-Sueur-County, Minnesota |
| Surname | Martin |
| Given Name | Fred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Tyrone Township |
| 1935 Residence (County) | Le Sueur |
| Additional Details | |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 40 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farm Laborer |
| Township / Ward | Tyrone Township |
| Est. Birth Year | ~1920 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Fred | Age | Birth yr |
|---|---|---|---|---|
| William Martin | Head | — | 60 | ~1880 |
| Dennis O'Day | Other | — | 10 | ~1930 |
| Patricia Martin | Other | — | 5 | ~1935 |
| Mary O'Day | Other | — | 13 | ~1927 |
| Fred Martin | Son | — | 20 | ~1920 |
| Anna Martin | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Le Sueur, …
Son, age
Le Sueur, Minnesota · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Fred P |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Le Sueur, …
Son, age 10
Le Sueur, Minnesota · implied b. ~1920
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Martin |
| Given Name | Fred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Le-Sueur-County, Minnesota
Son, age 20
Le-Sueur-County, Minnesota · implied b. ~1920 — 6 household members
| Surname | Martin |
| Given Name | Fred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Tyrone Township |
| 1935 Residence (County) | Le Sueur |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 40 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Fred Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Anna Martin (~0.92 confidence) and father William Martin (~0.92 confidence) and mother Anna Martin (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Anna Martin
b. ~1879
Source mother
● Household
· direct · ~0.92
Father
William Martin
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Anna Martin
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Fred Martin
Son · 1940 · age 20 · b. ~1920 · Minnesota
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Le-Sueur-County, Minnesota
Open full size
1940 US Federal Census — Le-Sueur-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01933-00478)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Matthew Luskey | 55 | Brother | Laborer | Minnesota |
| 2 | Edward Monaghan | 72 | Head | Farmer | Minnesota |
| 3 | Cyril Jarvis | 74 | Housekeeper | Housekeeper | Minnesota |
| 4 | Patrick H. Byrne | 40 | Head | Farmer | Minnesota |
| 5 | Mary Byrne | 40 | Wife | — | Minnesota |
| 6 | Patrick Jr. Byrne | 10 | Son | — | Minnesota |
| 7 | Mary C. Byrne | 9 | Daughter | — | Minnesota |
| 8 | Francis Byrne | 6 | Daughter | — | Minnesota |
| 9 | William Byrne | 5 | Son | — | Minnesota |
| 10 | Raymond Byrne | 3 | Son | — | Minnesota |
| 11 | James Byrne | 2 | Son | — | Minnesota |
| 12 | Paul Byrne | 0 | Son | — | Minnesota |
| 13 | Fred J. Logan | 46 | Head | Farmer | Minnesota |
| 14 | Anna Logan | 43 | Wife | — | Minnesota |
| 15 | Phillip Logan | 15 | Son | — | Minnesota |
| 16 | Bernice Logan | 12 | Daughter | — | Minnesota |
| 17 | William Martin | 60 | Head | Farmer | Minnesota |
| 18 | Anna Martin | 60 | Wife | — | Germany |
| 19 | Fred Martin THIS PERSON | 20 | Son | Farm Laborer | Minnesota |
| 20 | Patricia Martin | 5 | Granddaughter | — | Minnesota |
| 21 | Mary L. O'Day | 13 | Granddaughter | — | Minnesota |
| 22 | Dennis O'Day | 10 | Grandson | — | Minnesota |
| 23 | Raymond Vogler | 34 | Head | Farmer | Minnesota |
| 24 | Catherine Vogler | 32 | Wife | — | Minnesota |
| 25 | Elizabeth Vogler | 2 | Daughter | — | Minnesota |
| 26 | Barbara Vogler | 0 | Daughter | — | Minnesota |
| 27 | John Vogler | 36 | Brother | Farmer | Minnesota |
| 28 | Adolph Vogler | 70 | Head | — | Minnesota |
| 29 | Elizabeth Vogler | 71 | Wife | — | Minnesota |
| 30 | Fred Vogler | 39 | Son | Farm Laborer | Minnesota |
| 31 | Louis J. Logan | 42 | Head | Farmer | Minnesota |
| 32 | Mildred Logan | 36 | Wife | — | Minnesota |
| 33 | Margaret Logan | 10 | Daughter | — | Minnesota |
| 34 | Monica Logan | 4 | Daughter | — | Minnesota |
| 35 | Mildred Logan | 0 | Daughter | — | Minnesota |
| 36 | Harry William Kupfer | 66 | Head | Farmer | Minnesota |
| 37 | Melvin Kupfer | 30 | Son | Farm Laborer | Minnesota |
| 38 | James J. Moloney | 48 | Head | Farmer | Minnesota |
| 39 | Delia Moloney | 34 | Wife | — | Minnesota |
| 40 | Catherine Moloney | 77 | Mother | — | Minnesota |
Pedigree Summary
Fred
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)